Peggy, perhaps you can elaborate on the dysfunction: where and when and what happens? I have the lesser expensive 9 Standard Acrobat and never have AC related issues, although for everything else having to do with Acrobat, I couldn't claim the same. I had to upgrade to 9 from 7 because I went to Windows 7 64-bit and have installed the service packs as they come, but eventually found some of them to be troublesome (couldn't use ctrl function to select multiple pages) and I uninstalled and reinstalled from the CD; I'm currently at 9.0.0.6 and things are greatly improved.

GDNicoll